sagamore avenue sewer extension city council meeting...feb 03, 2020 · •2018/2019 fb...
TRANSCRIPT
City of Portsmouth, NH
Sagamore Avenue Sewer ExtensionCity Council Meeting
Suzanne Woodland, Deputy City Attorney
Terry Desmarais, PE, City Engineer
February 3, 2020
• Origin of the Sagamore Sewer Project
• Addressing Public Questions and Concerns at Public Meetings
• Motion for Work Session
Introduction
2City Council Meeting – February 3, 2020
• Pre 2005 Failed Septic And Use Of Holding Tanks
• 2005 Project First Appears CIP
• 2008 Engineering Study
• 2010 Bacteria Study by DES
• 2011 Engineering Update
• 2014 Great Bay Non-Point Source Study (DES)
Origin Of This Project
3City Council Meeting – February 3, 2020
• Supplemental Environmental Project
o Keeps the dollars local
o Delivers local environmental benefits
o Links with other projects in the watershed
• DPW Area Stormwater Treatment Project
• Water Quality Monitoring
• Lafayette Road (DOT) Stormwater Project
• Peverly Hill Road Stormwater Improvements
• March 2016 City Council Approves Consent Decree Second Modification
Incorporation of Project into Consent Decree
4City Council Meeting – February 3, 2020
• 2018/2019 FB Environmental Completed Water Quality Sampling
• 2018 Sagamore Ave Sewer Extension Preliminary Design Report
• July 2019 City Council Bond Authorization
Implementation
5City Council Meeting – February 3, 2020
CURRENT SAGAMORE PROJECT LIMITS
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• Property Owners Will NOT Be Required To Tie-In If They Have A Functioning Septic System
o Sewer Use Ordinance update will include this provision
• Property Owners Will Have To Tie-In If Their Septic System Fails
o New Hampshire Department of Environmental Services (DES) will not issue a permit for a septic system replacement
Important Project Points
7City Council Meeting – February 3, 2020
• September 4, 2019 Public Meeting at DPW
o Kickoff to field work
o Cost apportionment greatest concern
• Questions Received at Multiple City Council Meetings
• November 25, 2019 Public Meeting at Council Chambers
o Responses to questions
o Updated cost proposal
• December 9, 2019 Public Meeting at Council Chambers
o Defined future City Council decisions needed
Public Meetings
8City Council Meeting – February 3, 2020
Low Pressure Sewer System• Advantages
o Lower construction costs due to shallower bury depth of pipe (Shallow ledge in project area)
o Is not dependent on grade and topography
o Less invasive construction
• Disadvantages
o Higher property owner annual operation and maintenance costs
Gravity Sewer (No Pressure)• Advantages
o Lower long term costs to the home owner
• Disadvantages
o Higher construction costs
o More invasive/destructive construction
o Requires pump stations based on topography
o Requires permanent easements for cross country sewer lines
Sewer System Type - Low Pressure (LPSS)
9Photo credits to Engenuity Group Inc. and the
Town of Ocean Ridge Florida
City Council Meeting – February 3, 2020
• Long Track Record
o 60,000 Installs in New England
• Industry Standard
• Simple And Reliable, Least Amount Of Worry
• 10-15 Year Pump Life Span
• Local Installation And Long Term Ownership Have Been Successful
EONE Low Pressure Pump Stations
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Typical
Annual
Electric
Cost: $36
https://www.youtube.com/watch?v=VW7daUv18Rg
City Council Meeting – February 3, 2020
Existing EOne Pump System In Place
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Pump
CoverElectrical
Panel
Current LPSS In the City of Portsmouth
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Foyes CornerTuckers Cove
Jones Ave
Pleasant Point
Area
Edmond Ave
Islington Street
Cost Apportionment Proposal For City Council Consideration
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Owner’s Cost
Street
Public Sewer Main
Sewer Lateral
Curb Stop
Private Sewer
Lateral (PSL)
All Work Executed By City Contract
Pump and Connection
(Close To House)
City’s Cost
RO
W o
r Ed
ge
of
Ro
ad
City Council Meeting – February 3, 2020
• Sagamore Ave Sewer Extension Work Session to Address Outstanding Policy Decisions Such As:
o Cost Apportionment
o What Happens At Sale Of Property
o How to Handle Properties That Do Not Connect Until Later
o If the Cost to Abandon Existing Septic Will be Private or City
o Who Pays for Replacement of Pump at End of Life (~15 Year Mark)
o Who Pays for Maintenance of Pumping System
o Additional Funding Authorization
Motion for Work Session
14City Council Meeting – February 3, 2020